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Water network modelling

Water network modelling

Water network modelling

(OP)
Hi is there anyone who could advise me regarding the proper assigning of numbers of nodes in water network modelling? Is there a sequence to be followed or steps like a loop maybe in clockwise or counterclockwise? I am using epanet and watercaed software. Pls advise. . .thanks

RE: Water network modelling

There is no correct way. In WaterCAD you could even "number" the nodes with their physical location (e.g. 1st & Peachtree or "1450 3rd Ave").

As long as your system is logical and can be understood by others, you should be fine.

RE: Water network modelling

Suggest you number the nodes initially in steps of  five 5, 10, 15 etc. then when you add in a node it can be in sequence. Associate the up stream or downstream pipe number with the node.

Geoffrey D Stone FIMechE C.Eng;FIEAust CP Eng
www.waterhammer.bigblog.com.au

RE: Water network modelling

(OP)
Thanks guys for the info I was just wondering because the principles involved in watercad and epanet are of matrix type I guess similar to cholesky which as others told me needs to be labelled accordingly and closer to each other to minimize the bandwidth (dunno the exact name) I just forgot the principles behind it.

RE: Water network modelling

Both francesca and stainer offer good suggestions. I used stainer's method a lot when I started modeling (about 25 yrs ago).

With modern software you have more options as francesca noted. If you want shorter labels than "street x street" you could always number your nodes based on a map grid. For example…several of our clients have utility base mapping with a grid overlay. A typical grid might be 500 feet x 500 feet and be indexed something like A to M east-west and 1 to 25 north-south. Within grid square F10, you could label the nodes F10-05, F10-10, F10-15, and so on.

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